From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.9 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1,USER_IN_DEF_DKIM_WL autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7E44AC3B187 for ; Wed, 12 Feb 2020 02:08:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 55B0020873 for ; Wed, 12 Feb 2020 02:08:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="GRZ7aFoo" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727775AbgBLCIm (ORCPT ); Tue, 11 Feb 2020 21:08:42 -0500 Received: from mail-pl1-f196.google.com ([209.85.214.196]:44301 "EHLO mail-pl1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727007AbgBLCIl (ORCPT ); Tue, 11 Feb 2020 21:08:41 -0500 Received: by mail-pl1-f196.google.com with SMTP id d9so308527plo.11 for ; Tue, 11 Feb 2020 18:08:40 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:from:to:cc:subject:in-reply-to:message-id:references :user-agent:mime-version; bh=O2ZsuKPEP5oLCWMhrZcn4KHLKYwr5L+g0EDvWX5oHfY=; b=GRZ7aFoo3yb1JhjX4RKiJaWrQjkfYB8yJfXsYRBpLTGeQa50GZzVKxSJl5a3+7aT5X F+Jh3OEWE/gDMAf8Z4nG6nW5NAT0vtl516eU9STByC1A9cltp71M+/F6lcK8qX09MfQl F7Oaa9xk7waAp+4c2XlqwRaSPuUin0D4JGe3gTriXZVpFpXHWAgpSzAn/MX9EEgcPrMB DLxjfc/xk8wn7YeEDh0uA4KeCz8wSJPU595IOAJ0AGVceyqypBz/4Tzhky7PJybMbHOk ESgwAxqKoELPKcc+Xfihw8Q4h/A8MiK0YeRrP/ewOtMflUlq6Ni6DM/daI26CVOE/HJd c+xw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:in-reply-to:message-id :references:user-agent:mime-version; bh=O2ZsuKPEP5oLCWMhrZcn4KHLKYwr5L+g0EDvWX5oHfY=; b=Gh24g3YY90OzmBIYGY2E5hrqBcxWCHPYQpHZZFyz+94cJIT0g4uqrdizs8boCj4QpJ hBnUjten97zSf8Vmn82xyHQD9vllLBFbVPszszm+XdUHVnRl4IaXip3QH/lxW6jXRmPX BeuMu90S0aWT1EW4NPLyMIml/vuPius2SGGJSBtih9bmsCmQu52bwYU3ZljPIPiJv1B8 5Gj42fgljJnaZWOREDZlPQZLokKRxbh5J9SYueqhnsT3BtTVIeMm7yuCBTLRpnvAq5X8 GD0uFMP4TiJobhMIugwcjTX1hju0aUtM7AVwFDKzW3xFk+kTs+C+rBQovoCTY0gNjOVP w0Rw== X-Gm-Message-State: APjAAAXtj3M2TLQI3dldbbBNC0KQ6ESupQTlF03p7Fcl5ksWGHpR+Tjm S9f8f5AEnOnZ11UyC0BxpX5xLA== X-Google-Smtp-Source: APXvYqxD3Z3q4kqE5IkZZfnwQHS/3ERW12ITlfqiDi9YHEM/AmDj9MMNkW9RCHPA5x2C9OUOL8O5ww== X-Received: by 2002:a17:902:547:: with SMTP id 65mr19872097plf.50.1581473320284; Tue, 11 Feb 2020 18:08:40 -0800 (PST) Received: from [2620:15c:17:3:3a5:23a7:5e32:4598] ([2620:15c:17:3:3a5:23a7:5e32:4598]) by smtp.gmail.com with ESMTPSA id d26sm5062927pgv.66.2020.02.11.18.08.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 11 Feb 2020 18:08:39 -0800 (PST) Date: Tue, 11 Feb 2020 18:08:39 -0800 (PST) From: David Rientjes X-X-Sender: rientjes@chino.kir.corp.google.com To: Yang Shi cc: akpm@linux-foundation.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 2/2] mm: vmpressure: use mem_cgroup_is_root API In-Reply-To: <1581398649-125989-2-git-send-email-yang.shi@linux.alibaba.com> Message-ID: References: <1581398649-125989-1-git-send-email-yang.shi@linux.alibaba.com> <1581398649-125989-2-git-send-email-yang.shi@linux.alibaba.com> User-Agent: Alpine 2.21 (DEB 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 11 Feb 2020, Yang Shi wrote: > Use mem_cgroup_is_root() API to check if memcg is root memcg instead of > open coding. > > Signed-off-by: Yang Shi Acked-by: David Rientjes